Home / 145,333.42-200,538.91-80,797.48

Finding the Fourth Proportional to 145,333.42, 200,538.91 and 80,797.48

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Solution

The fourth proportional to 145,333.42, 200,538.91 and 80,797.48 is: 111,488.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,333.42 : 200,538.91 = 80,797.48 : x
  2. Step 2: Convert to fraction form
    145,333.42/200,538.91 = 80,797.48/x
  3. Step 3: Cross multiply
    145,333.42x = 200,538.91 × 80,797.48
  4. Step 4: Simplify right side
    145,333.42x = 16,203,038,569.95
  5. Step 5: Solve for x
    x = 16,203,038,569.95/145,333.42
  6. Step 6: Final answer
    x = 111,488.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.